Dental appliance.



E. M. CRANE.

DENTAL APPLIANCE.

APPLIOATION FILED JAN.6, 191s.

Patented Sept. 9, 1913.

INVEHTOR J 6M7 8 BY m WHTTORHEY tlhlTTE %TATE@ PATENT ll ldltl'.

ERNEST M. CRANE,

OF DETROIT, MICHIGAN, ASSIGNOR TO THE PELTON & CRANE 00.,

0F DETROIT, MICHIGAN, A CORPORATION OF MICHIGAN.

DENTAL APPLIANCE.

acrea e.

To all who 1n 2'11 may amocm:

'ie it known that I, l mics'r M. Guano, a citizen of the United States, residing at Detroit, county of rl ayne, State of liflichigan, have invented a certain new and useful improvement in Dental Appliances and declare the following to be a full, clear, and exact description of the same such as will enable others skilled in the art to which it pertains to make and use the same, reference being had to the accompanying drawings, which term a part of this specification.

This invention relates to dental appliances and has for its object an instrumentholder which is capable of universal movement within a plane of given btnu'ularies, that is, it has a pivotal movement upon a bracket that is also extensible and contractible and the holder itself has a swiveling movement upon its support on the bracket.

Another feature of this holder which I believe to be novel, is the use of a plurality of tables in place of one which tables swivel upon a common support so that arch of the tables may be used to support instruments of a ditlerent kind or one or more of the tables may be used for instruments which have not been used on the patient undergoing treatment and another or others of the tables may be used for the instruments which have been used so that the operator may easily keep track of those instruments which require sterilization.

A further feature of my invention is the construction of a. dentists table with a heater arranged to keep it at a somewhat raised temperature for the purpose ot drying instruments which become wet or moistened by use and for the further purpose of keeping flies or other insects from lighting upon and traveling over the instruments and thereby possibly init'ecting them.

Still another feature of this invention is the use of a translucent table and the use of a ligth thereunder itor illuminating the table and making it easy for the operator to [ind his instruments and pick them up.

The features of heating the table and illuminating it are combined in the use of an electric light under the table.

In the drawings:-Figure l, is a side ele- 'vation of my improved table. Fig. 2, is a top elevation or plan view upon a smaller scale showing the capability of swiveling.

The bracket 1 has a pair of integral knuc- Speeification of Letters Patent.

Patented Sept. 5), i913.

1913. Serial No. 740,301.

kles 2 upon which rest the knuckles 3 of the exteudible bracket 4. A pintle 5 passes through these knuckles and serves to pivotally support the extendible bracket on the stationary bracket 1.. The exteudible bracket it is made up of a plurality oil? pivotal links and is a common form of bracket that is used in connection with supporting telephones and other instruments. The links at the end of the extendible bracket carry knuckles (3 which support a hinge-pin 7 to which is at:- tached a standard 8. This standard is a hotlow cyliiulrical shaitt upon which rotatively supported the hub t) which is provided with a plurality of nipple-like portions 10 which receive and support the arms 11.

At the end of the arms 11 is supported a globe-sopporter l2, which globe-siipporter :arries an electric light socket 123 into which maybe screwed the imauulescentlight1st. A. transparent or translucent globe 15 may rest upon the glolassupporter l) and be secured therein by the set-screw it), but it is not essential that the globe 15 be either transparcut or t'rz'mslucent. An externally threaded ring 17 rests upon the top of the globe and upon thisiislaid a translucent or transparent slab 18. Over this is screwed a securing ring 1?) that is internally threaded to engage with the threads of the ring 17. The standard S terminates in a cupdike member .20 which may be used to support cotton or for other nu-poses. The lower end of the shaft 8 may be arranged so that a pair of wires 2t may plug into it.

It will be understood, although it is not shown in the drawings for it requires only meclm'nical skill to make the proper connections) that the electrical connections within the hub 9 are arranged so as to allow the hub t) to rotate upon the shaft 8. The electrical. connections extend from the hub t) into each arm 11 and connect with the sockets 13. An arm 29 is attached to the hinge pin 7 and it has upon its end a plurality of :tork-likc members 23 which may be used as instrmnent holders. The upper surface of the securing ring 19 is notched so as to prevent the instruments from rolling upon the table and to aid in picking them up.

From the above description it will be seen that the instrument supporter may be moved to any position upon a given range by reason 01 the extendible bracket 1; and the swiveling support of the plurality of tables and this range is still further enlarged by reason of the pivoting of the extendible bracket upon the stationary bracket 1. The operator may select one table upon which to place the instruments that he is about to use upon a patient and as they are used they may be placed upon one of the adjacent tables and thereby those that are clean and those that have been used may be kept separated. The heat from the electric light 14.- serves to dry the instruments as fast as they are used, so that there is no possibility of their rusting and it also keeps ofi flies and other insects. I prefer to make the heater in the form of an electric light which throws light through the light-emitting slab at the top of the table and aids the operator in picking up the instruments.

lVhat I claim is 1. A dentists instrument holder, iaving in combination, a plurality of arms con nected together, a pivot upon which said arms may rotate, a slab supported on each arm, a member about the exterior of each slab and rising slightly above the slab to prevent things from rolling oft the slab, and a heating element supported under each slab and capable of furnishing only a slight amount 01" heating for keeping the surface of the slab dry without unduly heating it, substantially as described.

2. In a dentists instrument holder, the combination of an arm mounted to have a range of movability, a globe mounted on one end of the arm, a flat light-emitting supporting slab supported across the top of the globe, a ring about and protruding above the edge of the slab to prevent things supported Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

by the slab from falling off, and an electric light in said globe for furnishing light through said slab and a moderate amount of heat for the purpose specified, substantially as described.

3. A dentists instrument holder, having in combination, a pivot, a plurality of arms connecting together and rotatably supportr ed on said pivot, a globe supported on the end of each arm, a fiat light-emitting slab supported across the top of each globe, a

ring about and protruding above the edge of each slab, and an electric light located in each globe to furnish light and a moderate amount of heat for the purpose specified, substantially as described.

at. A dentists instrument holder, having in combination, an arm capable of a range of movability, a globe supported on the end of the arm, a threaded ring supported on the top of the globe, a flat slab of lightemitting material resting on said ring, a threaded securing ring resting upon the edge of the slab and protruding above the slab to prevent things from falling oft the slab, the said securing ring adapted to screw into the threads of the first mentioned threaded ring to secure the slab in place, and an electric light located in the globe and under the slab for furnishing light through the latter and a moderate amount of heat for the purpose specified, substantially as described.

in testimony whereof, I sign this specification in the presence of two witnesses.

ERNEST M. CRANE. Witnesses C. It. PEL'roN, V. A. MACKENZIE.

Washington, D. C. 

